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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1027 (Engine Controls And Fuel - 4.3L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Engine Wiring Harness Electrical Connector & Engine Coolant Temperature (ECT) Sensor
    GM1876209Courtesy of GENERAL MOTORS CORP.
    NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) .
  2. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor (2).
    3. Fig 2: View Of ECT Sensor
    GM1876211Courtesy of GENERAL MOTORS CORP.
  3. Remove the ECT sensor from the cylinder head.
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